Improvement in blasting-fuse



T. P. SHAFFNER.

Patented Aug. '17, 1869.

Odniud mes TALIAFERRO I. SHAFFNER, OF LOUISVILLE, KENTUCKY.

Letters Patent No.93,755, dated August 17, `1869.

IMPROVEMENT IN BLAs'rING-IUsn.

The Schedule referred to in these Letters Patent and making par: of the same To all whom Muay concern Be itknown that I, TAmFERRo P. Smsnnunn, of

Louisville,l Jeerson county, and State of Kentucky,

have invented a new and improved Mode of Preparing Fuses for B1asting-Purposes; and I do declare that the following is a full and exact description thereof, reference being had to the accompanying drawing, and to the letters of reference marked thereon.

The nature of my invention consists in` applying to the ordinary blasting-fuse a jacket or covering, made of some rapid explosive substance, for the purpose of spreading the fire throughout the charge of powder in a blast, or in other conditions where powder is desired to be exploded rapidly, in greater or less quantities.

To enable others skilled in the art to make and use my invention, I will proceed to describe the iuvention employed by me. y

'My process consists in using, for example, an ordi-- nary blasting-fuse, and covering the end that lay in the powder with gun-cotton or other rapidly-exploding substance. This covering may be in the form of a woven jacket or bag,.or the yarn `or thread may be wound around or tied upon the fuse. I

Figures l and 2 represent a fuse prepared for a blast.

- Fig. l shows the fuse complete, and g. 2, a secl tional view of fig. 1.

A is the fuse, and

J3, thejaeketmaule-f cloth, prepared as gun-cotton.

When the fire reaches the end of the fuse it ignites the gun-cotton, which is more rapid in spreading fire than .gunpowder, especially blasting-powder, and the moment it becomes ignited, it spreads the fire through the whole charge of powder, and by suddenly igniting the wholeof the charge, a greater amount of rock will be disrupted. l

The same principle can be applied to cannon, or for other' purposes where sudden explosions may be desired.

Having'fully described my invention,

What I desire to secure by Letters Patent is as follows, viz:

I claim the placing, upon a blasting or other fuse, gun-cotton, or other substance of more rapid combustion than gunpowder, forLthepurpose of spreading the fire throughout the charge of a blast, cannon, torpedo, bomb, or shell, substantially as hereinbefore described.

'.IAL. P. SHAFF NER.

XVitnesses:

EDM. F. BRoWN, W. M. SHAFFNER. 

